No matter how you stack them, they're wrong.
The image shows the stock front differential bushing next to the energy bushing. The stock bushing has 2 extra spacers and a washer under it. The bushing flange should be the same length as the stock one without the 2 spacers and washer.
Don't buy these unless you want to have to modify them.
Also, burn off the plastic and reuse the hub for the rear. Never saw this before... Threw it in the gas grill and it came off. Then left the grill on for an hour to make sure the only residue is carbon. (probably a stupid way to do it but it worked really well)